Base of Operations: formerly
based in catacombs beneath New York City; Sandhaven Community Center,
Sandhaven Acres, Sandhaven, Arizona; two Serpent
Citadels (one located in the Stuyvesant Hotel, Bronx, NY, one
located in an abandoned mental institution outside Pawling, NY)

First Appearance: Captain
America I#310 (October, 1985)

History:

(Iron Man Legacy#7) - Geoffrey Wilder hired Sidewinder and hist first attempt at an Serpent Society including Anaconda, Cobra, Diamondback, Puff and Rattler to kill Tony Stark in Los Angeles. They attacked him at a scrapyard, but Stark escaped their first attack and quickly put together some weapons.

(Iron Man Legacy#8) - The Serpent Society surrounded the hut Stark was hiding in and were surprised when Stark blew it up, knocking out all but Anaconda and Sidewinder. The latter threatened Stark while the former tried to crush him only to get knocked out by an electrical charge released from Stark's chestplate.

(Captain America I#310) - At a
posh midtown Manhattan hotel, Sidewinder (Voelker) had invited several
serpent-themed mercenaries to attend the organizational meeting for the
Serpent Society; only Viper (Madame Hydra) declined to attend. Those
present were Sidewinder, Black Mamba, Death Adder, Princess Python,
Cottonmouth, Diamondback, Constrictor, Bushmaster, Cobra (later King
Cobra), Asp, Rattler, and Anaconda. Sidewinder's pitch was to mimic the
heroes and to band together as a united group. He'd spent the previous
nine months laying the groundwork for his new group, and promised a
guaranteed pay scale, insurance, medical plans, pensions, greater
access to tools and data, and, thanks to Sidewinder's teleportational
abilities, no fear of long-term imprisonment. All but one agreed to
join; Constrictor refused and left, even alerting the Avengers to their
existence so as to eliminate possible rivals.

(Captain America I#310) - To test
their ability to be team players, Sidewinder split the group into three
sections, and set each group out in a van to retrieve objects that he
believed would be of use to the Society. Anaconda, Rattler, and Cobra
went to the abandoned Brand Long Island complex (410 Gannon Avenue,
Long Island City) where Brand's
mutagenics department had created Sidewinder and his original
Serpent Squad. Captain America (alerted by the Constrictor) interrupted
and captured Anaconda, but Rattler and Cobra escaped with the
equipment. Sidewinder quickly freed Anaconda from jail, and that
evening she beat Constrictor into unconsciousness while Cobra watched.

(Captain America I#311) -
Following the successful completion of all three tasks, the group
reconvened in their new headquarters, the Serpent Citadel. Seeking to
advertise the group, Sidewinder broke them into teams of two and sent
them to contact all the major criminal and subversive organizations in
America. Among the contactees were the Maggia, Zodiac, Secret Empire,
Kingpin, AIM, and Hydra. Asp and Cottonmouth made contact with the
Kingpin in Manhattan, while Diamondback and Bushmaster made contact
with AIM's inner council, who, after Bushmaster noted that satisfaction
was guaranteed or the group would forfeit its fee, agreed to hire the
group to hunt down and assassinate MODOK.

(Captain America I#312) - Still
teamed, Diamondback and Bushmaster investigated an abandoned AIM
headquarters (it had been demolished during a MODOK/Hulk fight) on the
Maine coast. Concluding that the base was truly abandoned, they set a
time-bomb to destroy the whole mountain in case MODOK tried to return.

(Captain America I#313) -
Investigating a sunken AIM submarine on the Atlantic coast, Bushmaster
and Diamondback found MODOK, who was trying to recuperate. MODOK
escaped, slicing off both of Bushmaster's prosthetic arms in the
process. Diamondback rescued Bushmaster, returned to their Serpent Saucer, and notified
Sidewinder, who quickly summoned the rest of the Serpent Squad from the
sites they'd been investigating. He ordered Diamondback to care for
Bushmaster while Sidewinder arranged to have him transported to the
infirmary, and the other serpents to hunt for MODOK. They found him in
a local mall; Diamondback took charge of the Society members (to
Anaconda's annoyance) and they headed in. Princess Python decided to
flee rather than face MODOK, but was stopped by Captain America; she
revealed to him the existence of the Serpent Society and the fact that
they were pursuing MODOK; Captain America let her go. After a "gas
leak" announcement (arranged by Captain America) emptied the mall, the
team cornered MODOK but Captain America intervened; Cottonmouth ordered
Asp, Diamondback, and Black Mamba to take out Cap while the rest
attacked MODOK. Captain America quickly defeated the three women, but
Death Adder and Cottonmouth delivered the killing blows to MODOK before
Cap could stop them.

(Captain America I#315 - BTS) -
Sidewinder freed from jail those serpents that had been imprisoned, and
had Princess Python captured and brought to the Citadel.

(Captain America I#315) - Needing
MODOK's corpse as proof of their success, Anaconda, Black Mamba, Asp,
and Cobra stole the body from the Monmouth County morgue; no one was
killed in the theft. The foursome delivered the body to AIM and
received $100,000 in payment. Sidewinder was "making an example" of
Princess Python (with an intent to ransom her to the Circus of Crime)
when the team returned with the money which Sidewinder then distributed
to the rest, with commendations and bonuses going to Death Adder and
Cottonmouth for inflicting the killing blows; this was interrupted by a
call from the Porcupine (hoping to sell his armor to the Society), but
Sidewinder quickly hung up on him. Porcupine soon called again,
claiming to have captured Captain America, and Sidewinder sent Death
Adder, Rattler, Cottonmouth, and Diamondback to investigate. This
proved to be a trap arranged by Captain America, who captured three of
the four (Diamondback escaped). Sidewinder soon freed them all from
jail, but Captain America learned how they were escaping.

(Captain America I#318) - Death
Adder was assigned to transport Princess Python to the Peoria to ransom
her to the Circus of Crime for $10,000. His Saucer was shot down over
the South Bronx, and he was shot and killed there by a Scourge.

(Captain America I#319) - Rattler
and Cobra combed the wreckage of Death Adder's Serpent Saucer, but
could find no clues to his disappearance. All the Serpents (except
Diamondback, who was out on a solo mission) were looking for him, and
were present when Sidewinder teleported in with Death Adder's body,
having found it in the local morgue. Sidewinder ordered everyone to
drop all missions and concentrate on finding the killer. Cobra and
Bushmaster invaded some AIM loyalists, Asp and Anaconda went after the
Circus of Crime, Black Mamba spoke to Death Adder's parents, Rattler
and Cottonmouth sought information from some of the Kingpin's
underlings, and Diamondback investigated the Foolkiller
(Greg Salinger) in Indiana.

(Captain America I#320) - When
Diamondback failed to report in, Sidewinder sent Cobra after her. She
was in a hospital outside Akron, Ohio, having been shot by a local
farmer. Cobra returned Diamondback to the Citadel, though a Scourge
shot at their Saucer as they left, missing the fuel tank by mere inches.

(Uncanny X-Men Annual#13 - BTS
(fb)) - At some point, Sidewinder secretly placed tiny tracking chips
in the skulls of all the Society members, allowing him to track them
and teleport to their locations. He later told Diamondback and the
X-Men about these.

(Captain America I#342 - BTS) -
Viper (Madame Hydra) concocted a plan to invade the Serpent Society
from within, and use its members to dump a mutagenic toxin into the
drinking water of Washington D.C. She recruited Fer-de-Lance, Black
Racer, Puff Adder, Copperhead, Coachwhip, Boomslang, Rock Python, and
Slither to help her with this.

(Captain
America I#337) - In Las Vegas, four previously unknown snake-themed
villains, Fer-de-Lance, Black Racer, Puff Adder, and Copperhead,
committed what was at least the second in a string of casino robberies.
However, after an alarm was tripped they were forced to hole up in a
casino penthouse. The Captain (Captain America under another identity),
Falcon, D-Man, and Nomad invaded the penthouses and captured the
quartet.

(Captain
America I#338) - The four Serpents were held in the same cell, opposite
the vigilantes who'd captured them. Sidewinder teleported in and began
freeing the snake-themed villains one-by-one, but by the time he came
to the last, Fer-de-Lance, the Captain had broken into the cell and
grabbed Sidewinder before he could teleport out. Sidewinder grabbed
Fer-de-Lance by the throat and threatened to kill her, forcing the
Captain to let him go to save the villainess' life; he took
Fer-de-Lance with him when he teleported out.

(Captain
America I#341/3) - The Society was phenomenally successful in its first
year, with each member clearing in excess of a million dollars.

(Captain
America I#341/3) - Someone still owed the Society for the "Sumatran Rat
affair", Van Lunt's Zodiac owed the group money for something, and
Hydra had made a promising offer for a hire.

(Captain
America I#341/3) - Sidewinder introduced the four new Serpents to the
charter members, and appointed them as probationary members of the
team, with full status to be determined in three months time, and their
first assignments to be given the following morning at 9AM. However,
Fer-de-Lance summoned in Viper and they proceeded to Black Mamba's room
where Viper shot her and donned her costume. She then bit Sidewinder,
poisoning him, but he barely teleported away. He popped in on
Diamondback, who gave him the Cobra's universal anti-toxin, and the
pair teleported to their communications post as Puff Adder broke in the
door. On the cameras, they saw a number of snakes they didn't recognize
(Coachwhip, Boomslang, Rock Python) in the building, and it became
apparent that the newcomers plus some of their own were allied with
Viper. Not knowing what else to do, Diamondback called Captain
America's Hotline for help.

(Captain
America I#342) - After being attacked by Fer-de-Lance and Coachwhip,
Diamondback activated Sidewinder's cloak, dropping her and Sidewinder
in a pond outside. She met up with the Captain, Nomad, D-Man, Falcon,
and Vagabond, who had come in response to her call, and while Vagabond
took Sidewinder to a hospital the others invaded the Citadel.
Bushmaster, Black Mamba, Asp, and Cottonmouth refused to join Viper, so
she injected them with a poison which would leave them dead in an hour.
Viper sent Black Racer to search the local hospitals for Sidewinder.
She found him and Vagabond in an ambulance, but Vagabond defeated Black
Racer by throwing her from the ambulance. One Saucer departed carrying
Copperhead, Boomslang, and Cobra, while the Captain, Nomad, D-Man,
Falcon, and Diamondback invaded the Citadel and took down Anaconda,
Rock Python, and Rattler. The Captain and Diamondback proceeded inwards
and confronted Viper, Slither, and Coachwhip. Diamondback succeeded in
freeing Cottonmouth, only to learn that he'd agree to join Viper.
Diamondback and the Captain took out Cottonmouth and Coachwhip, then
gave the universal anti-toxin to Asp, Black Mamba, and Bushmaster.
Viper and Slither attempted to escape but Nomad and D-Man captured
Slither while the Viper fled.

(Captain
America I#343) - The Viper escaped in a Serpent Saucer, though the
Captain leapt on board. Diamondback took another Saucer after, bringing
along Nomad, Falcon, D-Man, and Slither, who Nomad wanted to
interrogate. They shot down the Viper, unaware that Cap was onboard,
but both escaped before it crashed and the Captain knocked out Viper
and took her teleportation ring. In Washington D.C., Cobra, Boomslang,
and Copperhead were dumping toxins into the cities water supply while
Cobra was seriously questioning the wisdom of (and profit in) following
Viper.

(Captain
America I#344) - Cobra, Boomslang, and Copperhead return to their
Saucer through a D.C. rife with people
mutating into snakes, only to find Diamondback and the
Captain waiting for them. Cobra escaped to another saucer where he
found Nomad and D-Man inside, guarding Viper and Slither. Viper
demanded that Cobra free her but he decided to kill her instead; Nomad
deflected the acid bomb and Cobra fled with Nomad following. Viper
managed to use the Cobra's acid bomb to escape in the confusion,
poisoning D-Man. The Captain and Diamondback found the unconscious
D-Man and delivered an anti-toxin to him, the Captain went after Viper
while Diamondback stayed with D-Man at Cap's request. Cobra encountered
the Viper as she fled the White House and knocked her unconscious. He
offered her to the Captain in exchange for 24 hours for the Society to
clear out, but the Captain refused, so Cobra turned her over anyway and
ran. Diamondback was captured by Captain America (John Walker) and
arrested.

(Captain
America I#345) - His inability to find Nomad and D-Man (who had been
arrested beside Diamondback) prevented the Captain from traveling to
the Serpent Citadel and closing it down, giving the snakes time to
evacuate it with many of their belongings. Sidewinder and Vagabond
teleported into Diamondback's cell and rescued her. At Diamondback's
request they also freed Nomad, though D-Man declined to be rescued and
Vagabond remained behind with him.

(Captain
America Annual#10/3) - Sidewinder left the group in exchange for a 25%
cut of the group's future earnings, and turned all the group's assets
over to Cobra, who took leadership.

(Uncanny
X-Men Annual#13) - Diamondback rejoined the Society just as Cobra
accepted a commission from Ghaur (Deviant leader) and Llyra (Atlantean)
to retrieve four items of arcane mystic power. Cobra split the Society
into squads, but each squad met a team of X-Men (save one which met up
with the mystic Mr. Jip) and was defeated. Sidewinder acquired all four
mystical items, and sent Cobra and the Serpent Society a ten percent
commission based on the payment which he and Diamondback received from
Ghaur and Llyra.

(Captain
America I#355) - Rock Python, Coachwhip, and Puff Adder accosted Sam
Wilson (the Falcon) in his office in an attempt to steal his Falcon
suit. They were interrupted by Battlestar, which gave the Falcon time
to suit up and the pair defeated the three serpents. No reason was
given for the attempted theft, though the Falcon speculated that it was
some sort of Serpent Society initiation.

(Captain
America I#365/2) - A disguised Loki visited Cobra and urged him to send
the Society after different opponents which they'd never fought before
but the Cobra declined, saying the group was motivated by profit, not
petty vengeance. Cobra informed the Society, asking them to report
anything they heard about the mystery man. Realizing that his own fear
of his former partner, Mr
Hyde (who had recently escaped from the Vault) was limiting
his leadership (Society business was down as a result), the Cobra left
Bushmaster in charge of the Society and went after Hyde.

(Captain
America I#367/2) - Cobra returned to the group; Bushmaster reported
that they had to spring Coachwhip and the Asp after they got into a
little trouble. Cobra dismissed him, and the following morning
announced to a full meeting of the Society that he had recreated
himself as King Cobra and intended to lead the group to new heights of
infamy.

(Captain
America I#368) - At a lunch with Diamondback and Black Mamba, Asp
reported that the Society's business was booming since King Cobra got
his act together; she asked Rachel to return but she declined. A page
from the Society told Asp that the Red Skull's people were offering a
$100,000 reward for Magneto's whereabouts and Diamondback volunteered
that he'd been hanging with the Hellfire Club.

(Captain
America I#380 - BTS (fb)) - The Serpent Society placed Diamondback
under surveillance to make sure she would not betray them, and
determined that the man she was dating was Captain America.

(Captain
America I#372) - While watching Diamondback, Boomslang was rousted by
Captain America and subsequently gunned down by a street gang. He was
taken to a hospital, with a 50/50 chance of survival.

(Captain
America I#379/2) - From the shadows a bald-headed (or cowled) figure
observed Diamondback with binoculars before passing surveillance onto
someone code-named "Streetwalker;" Black Racer (in her civilian
identity was subsequently seen watching Diamondback at her gym. Later,
another unseen figure in a limousine ordered Black Racer to take
Diamondback down, which she quickly did.

(Captain
America I#380) - King Cobra informed the captive Diamondback that she
was to be held trial by the Society for treason. Black Mamba acted as
her counsel, King Cobra as judge, and Coachwhip as prosecutor; the
Society voted to kill Diamondback for her treason. Black Mamba and Asp
threatened to quit if King Cobra followed through, and Sidewinder
teleported Diamondback out at the last second.

(Captain
America I#381) - King Cobra ordered Diamondback and Sidewinder's
execution, with a doubled annual bonus to anyone who brought in their
corpses. He sent most of the Society out hunting them, and he and
Bushmaster confronted Black Mamba and Asp, bringing phone records that
showed Mamba had called Sidewinder; King Cobra gassed them unconscious.
Diamondback and the mercenary Paladin entered the Society's
headquarters in the Stuyvesant Arms Hotel, on East 238th Street, in the
Bronx. She gassed Kenny, the desk clerk. Paladin got the drop on
Bushmaster and ordered him to take them to Asp and Mamba, but King
Cobra shot Diamondback in the back with a venom dart, and forced
Paladin to surrender in exchange for the antidote.

(Captain
America I#382 - BTS) - King Cobra contacted most of the other groups to
return to Society headquarters; as Anaconda's group was fighting
Captain America at the time they did not get the message.

(Captain America I#382) - Rock Python, Puff Adder,
and the recovered Anaconda defeated Captain America and called King
Cobra, who ordered them to leave the Captain and not return for 24
hours, in case he was faking. Captain America was indeed faking, and
tracked their transmission to locate the Citadel. Captain America
landed on the Saucer of the returning Cottonmouth and Fer-de-Lance, and
quickly took both down. He proceeded inside, where he took down
Bushmaster. King Cobra ambushed Cap, forcing him to surrender his
shield or see Diamondback killed, but fled only to return with Black
Racer, Coachwhip, and Rattler. They were in turn defeated, and Captain
America saw King Cobra, Coachwhip, Black Racer, Fer-de-Lance,
Cottonmouth, and Rattler hauled away by Guardsmen; Diamondback, Black
Mamba, and Asp were allowed to remain free.

(Captain America I#385/2) - TV reports noted that
King Cobra and six Society members were captured, while Puff Adder,
Anaconda, Rock Python, Diamondback, Asp, and Black Mamba remained at
large. Those captured were held without bail pending investigation of
four outstanding warrants and at least ten charges. Anaconda and Rock
Python attacked the other three at Diamondback's apartment.

(Captain America
I#386/2) - With Puff Adder piloting their hovercraft, Anaconda and Rock
Python loaded the three captured former Society members into the ship.
They were attacked by MODAM, who threw Python and Adder from the ship.

(Captain
America I#387) - The Avengers received reports that two Serpent Society
members (Rock Python and Puff Adder) were found unconscious in Bay
Ridge, Brooklyn. Captain America witnessed them being hauled to the
hospital, and briefly questioned Rock Python.

(Captain America Annual#10/3) - Sidewinder
reflected on his attempted retirement since he left the Society, and
his fears that Cobra (now King Cobra), though currently behind bars
with most of the rest of the Society, would eventually come after him.
Wanting to square himself with King Cobra, he traveled to Colorado in
50 mile leaps, teleported into the Vault, and then out again with King
Cobra. However, a Guardsman's blast dislocated his shoulder; weak, he
left Cobra, calling them even, and teleported away. Cobra, however, saw
only Sidewinder's abandonment, not the rescue, and swore to get even.

(Captain America I#411-414) - Anaconda, Puff Adder,
Boomslang, and Rock Python attended an A.I.M. weapons expo on Boca
Caliente where Crossbones fought five foes in a prearranged ring-fight
before being revealed as Captain America. The four serpents were among
the many villains who attacked Captain America en masse after a $50,000
reward was offered for his defeat; the Captain eventually escaped.

(Captain America I#434 (fb)) - The Serpent Society
paid off the police and manufactured a fake toxic waste alarm to force
the residents of Sandhaven Acres, an Arizona retirement community, to
sell their homes at a big loss. Through a dummy company the Society
bought up the community, turning it into their private headquarters.

(Captain America I#434) - In a small town in
Arizona, Fer-de-Lance and Rock Python were robbing a bank when they
were stopped by Jack Flag. King Cobra interrupted, with Anaconda,
Coachwhip, Cottonmouth, and Puff Adder. Flag announced he wanted to
join the Society; Anaconda knocked him unconscious and they took his
body along when they helicoptered back to their base. As an initiation
test King Cobra sent Jack to steal something a painting for him, not
telling Flag that he was stealing from Mr. Hyde. The next morning at
the Sandhaven Community Center, King Cobra was very surprised when Flag
showed up with the painting.

(Captain America I#435) - King Cobra auditioned
Jack as his eventual replacement as King Cobra, forcing him to run a
gauntlet of the Society serpents. The fracas was interrupted when Mr.
Hyde showed up and took down Puff Adder and Anaconda. Captain America
(secretly summoned by Flag) also showed up and faked his own defeat at
the hands of Jack Flag/ King Cobra and Bushmaster, Fer-de-Lance,
Cottonmouth, Rock Python, and Rattler; they took him to the real King
Cobra. Coachwhip, in the meanwhile, encountered and was defeated by
Cap's protégé, Free Spirit. Disguising herself as Coachwhip, Spirit
tried to rescue Cap; Jack Flag revealed his true colors and joined her,
and King Cobra flushed Captain America out the swimming pool and out
into the desert. With Mr. Hyde, King Cobra went after Cap, leaving the
rest of the Society to finish the other two.

(Captain America I#436) - Captain America defeated
King Cobra and Hyde before collapsing; Jack Flag and Free Spirit fled
and were being pursued when the Avengers' Hank Pym (Giant-Man) showed
up and knocked out Rattler before leaving to find Cap.

(Captain America I#437) - The remainder of the
Society had Jack Flag and Free Spirit cornered when Force Works (an
Avengers' offshoot) came to the pair's aid; within four minutes the
Serpent Society was defeated. They were taken into custody by the team,
as were King Cobra and Mr. Hyde.

(Official Handbook of the Marvel Universe: Teams
2005) - Using the stolen Brand/Roxxon technology which the Society had
long ago acquired in their first "test missions" under their former
leader Sidewinder, the Society created/equipped new Sidewinders.

(All-New Official Handbook of the Marvel Universe#3
(Diamondback)) - When Diamondback learned that an LMD modeled on her
had begun a relationship with Captain America, she contacted Black
Mamba and the Asp and the pair recruited the Serpent Society to hunt
Diamondback, keeping its LMD nature secret.

(Captain America IV#30) - Bushmaster, Puff Adder,
and Asp burst in on Captain America's apartment. Asp blasted both of
them, knocking out Captain America but not Diamondback, leading Asp to
note for the benefit of the other's that her blast should have knocked
out Rachel as well. Captain America and Diamondback (really an LMD)
were transported to the Society's underground New York-area
headquarters and chained there.

(Captain America IV#31) - King Cobra taunted
Diamondback (again, really an LMD), promising to punish her for her
betrayal; he then left both her and the Captain chained for 16 hours
while he contacted several of Captain America's foes to arrange the
auctioning off of the hero. When the time for the auction came, King
Cobra had Anaconda and Puff Adder take the Captain down, but Cap
escaped, knocking out both of them; King Cobra had time to summon the
rest of the Society before being knocked out himself. Captain America
took out Rattler, Black Mamba, Coachwhip, and Bushmaster; Diamondback
took out Black Racer, Fer-de-Lance, Rock Python, Cottonmouth, and
Sidewinder. Asp was present as well but apparently escaped. SHIELD took
the Society into custody.

(All-New Official Handbook of the Marvel Universe
Update#2/Secret War#3-5) - Lucia von Bardas contacted the Serpent
Society. King Cobra worked for her and was ultimately betrayed, like he
had expected from the start.

(Nova IV#19) - A group of Serpent Society members
comprised of Anaconda, Black Mamba, Copperhead, the new Death Adder,
Fer-de-Lance and Sidewinder were unnerved by the worldwide invasion of
the Skrulls. They took over a compound in Danzig, Ohio, barricading
themselves, their loved ones, and many hostages inside. However,
members of the Nova Corps (Nova (Richard Rider), Malik Tarcel, Irani
Rael, Qubit, Fraktur, Morrow) invaded the compound and dispatched the
entire group within seconds, then turned them over to federal
authorities.

(Wolverine III#73/1) - On a Monday, several Serpent
Society members (Anaconda, Black Mamba, Bushmaster, Cottonmouth),
fought members of the New Avengers (Captain America/Barnes, Luke Cage,
Ronin/Barton, Spider-Woman/Drew, Wolverine) in a semi-tropical locale
(palm trees were nearby). Two classic Serpent Saucers were seen
hovering in the distance, implying that other members of the Society
were present or at least nearby.

(X-Men:
To Serve and Protect#2/1) - Mr. Negative hired the Serpent Society to
eliminate two new vigilantes (Anole and Rockslide, both disguised young
X-Men) who were impacting on his criminal activities. Soon after, a
trap was sprung and the two vigilantes faced King Cobra, Bushmaster,
Rattler, Anaconda and the new Death Adder.

(X-Men:
To Serve and Protect#3/1) - Anole and Rockslide's unusual fighting
styles kept the Serpent Society members at bay until Mr. Negative
intervened and "turned" Rockslide to his will.

(X-Men:
To Serve and Protect#4/1) - Anole dodged the possessed
Rockslide's
hits, jumping amongst the Serpent Society members so that they would be
hit instead of him. Mr. Negative ended his possession of Rockslide and
a smoke grenade covered the escape of Mr. Negative
and the
Serpent Society group.

(Elektra III#7 (fb) - BTS) - Sidewinder psychically stayed in contact with a telepathic member of the Assassins Guild throughout the mission.

(Elektra III#6) - The Serpent Society (Sidewinder, Anaconda, Black Mamba, Death Adder) found their targets in the Himalayas at the Quiet Refuge, a long-forgotten Inhuman memorial, nearby the former location of Attilan. They concentrated their attacks on Elektra to lure the others to Cape Crow's hideout where Lady Bullseye was already waiting to slay him. Elektra followed her allies to Cape Crow's hideout after taking out all Serpent Society members with a variety of injuries.

(Elektra III#7) - After defeating Lady Bullseye, who had killed Matchmaker, Elektra returned to Sidewinder and forced him to take her to the Assassins Guild. Sidewinder teleported Elektra to New Orleans where she was ambushed by Jack O'Lantern, Whiplash and Tiger Shark. Sidewinder fled with his Assassins Guild contact, but Elektra followed them and slew everyone except Sidewinder, who promised to retire again if she let him live.

Given the "are they
or aren't they?" membership status of several people, notably Black
Mamba, Asp, and Copperhead, it would appear that the Society has a very
loose "active membership" criteria - unless you're actively booted out,
you're always welcome back. So, everyone excepting Diamondback,
Princess Python, Sidewinder (Voelker), and Viper could still be
considered a member if they wanted; as Slither has never appeared with
the group, so far, he appears to not want to be a member.

In Uncanny X-Men
Annual #13, Sidewinder revealed to Diamondback that all Society members
had tiny transceivers implanted into their necks, under their skin, so
that he could track them. Presumably all the original Society members
had these (and may still have them), though given that Sidewinder had
to have the entire group search for Death Adder, clearly these were
implanted after Death Adder was killed, but before Viper's takeover.

In Captain America
I#379/2, the unseen figures were certainly Serpent Society members.
Based on his shape, the bald-headed (or cowled) figure with binoculars
was most likely Cottonmouth; Bushmaster does also fit the silhouette
but would have been unlikely to have enthusiastically helped with this.
Given that Black Racer was seen following Diamondback at the gym, she
was almost certainly "Streetwalker." The voice giving Black Racer
orders from the limousine was probably King Cobra.

A couple of
sub-groups of the Society have appeared, but neither was really a
Serpent Society appearance per se. In Thunderbolts II#104 &
107, Bushmaster, the new Death Adder, King Cobra, and Rattler fought
beside the Thunderbolts. In Amazing Spider-Man I#562-563, Coachwhip,
Fer-de-Lance, Puff Adder, Rattler, and Rock Python hung out together at
one of the many "Bars With No Name."

In the 2006 Jim
Butcher novel Spider-Man: The Darkest Hours, page
255 has a throwaway mention of the Serpent Society by Spider-Man, in a
list of "totemistic super folk" (those based on animals).

In the novel Iron Man: Operation A.I.M. (1996) by
Greg Cox (pg. 30), Captain America begs off helping Iron Man in order
to "look into reports of renewed Serpent Soceity activity near
Seattle." Captain America and the Black Panther later (pg. 100-)
apparently encounter the Cobra (Voorhees) in Wakanda, but that Cobra
proves to be an adapoid, and is not related to Cap's earlier actions.

Jim Sharpe correctly
points out that in the main image used here, Copperhead is miscolored -
his coloration seems to be that of Cobra. The correct coloration can be
seen in the entry for Copperhead.

Though not listed
above, it seems likely that King Cobra would have invited his newly
empowered nephew, the new Cobra, to join. If such an invitation was
issued, it was apparently declined.

Iron Man Legacy#7-8 occurred shortly after Tony Stark had lost control of Stark International to Obidiah Stane. There is even the cover of Iron Man I#173 (August, 1983) seen as Wall Street Journals' cover in Iron Man Legacy#6. This is a bit problematic because the Serpent Society wasn't even founded at that point and Puff Adder had joined the Society as an infiltrator even later. Maybe he got kicked out and this was Sidewinder's first attempt with a smaller roster to establish themselves.

or any other serpent
or snake groups/characters, nor those with a similar name

Brand's
mutagenic equipment

Among others, Sidewinder (Voelker), Black Mamba,
Death Adder (Burroughs), Anaconda, and Bushmaster were empowered using
equipment at Brand's Long Island facility. Following that facility's
shutdown, Sidewinder had Anaconda, Rattler, and Cobra (Voorhees) steal
the mutagenic equipment for the Serpent Society's use.

--Captain America I#310

Gaston

Gaston acted as a
butler at the team's Sandhaven, Arizona headquarters.

--Captain America I#435

Hallsy

Hallsy
was one of several mechanics for the Society. When Fer-de-Lance and
Cottonmouth returned a Saucer, he was asked to give it an overhaul, and
after Captain America defeated the two he told Cap where to find some
rubber hose to tie them (as well as Hallsy and another mechanic) up. He
was taken into police custody thereafter.

--Captain
America I#382

Keener

Keener worked in communications for the Society,
and took Anaconda's call when she was informing King Cobra that she,
Rock Python, and Puff Adder had defeated Captain America.

--Captain America I#382

Kenny

Kenny was the desk
clerk at the Stuyvesant Arms Hotel Citadel, and was familiar with the
Society members. Diamondback gassed him unconscious when she and
Paladin invaded the Citadel. He was presumably taken into police
custody when Captain America shut down the headquarters thereafter,
though it is possible that he recovered and escaped.

--Captain America I#381

Serpent Citadel

The
Serpent Society Citadel was the Society's upstate New York
headquarters, located near the city of Pawling. It was an abandoned
mental hospital purchased by Seth Voelker (Sidewinder) and held in his
name. It possessed residential and training areas for the team, a
communications center, an infirmary, drop tubes on each floor which led
to the hangars, and a relaxing natural-seeming indoor pond area which
was, of course, filled with snakes. Residential areas were decorated
with a snake motif, complete with ornate serpentile headboards and
mirrors. Serpent Society members were given micro-communicators which
were monitored from here, but which did not require the Citadel to
operate.
The team also possessed a smaller base in a multi-story hotel, the
Stuyvesant Arms Hotel on East 238th Street in the Bronx (New York City,
New York), and this too was occasionally referred to as the Citadel.
This base had many of the same facilities (presumably much of the prior
Citadel's equipment was relocated here after that base was closed), and
it included technology to create an artificial cloud bank over the
building's rooftop to hide the comings and goings of the Serpent
Saucers. This became the group's primary headquarters after the Viper's
takeover, but was closed after Captain America and Paladin invaded it
following Diamondback's trial.
The team later relocated to the Sandhaven Community Center at 1260
Camden Drive, Sandhaven, Arizona. They remained there until Captain
America, Jack Flag, Free Spirit, and Force Works captured them there.
This headquarters lacked most of the previous high-tech equipment; the
team was even relegated to using helicopters for transport instead of
Serpent Saucers.
The team eventually relocated into catacombs beneath New York City.
These headquarters were immense, possessing several levels and exits.
SHIELD closed this down after Captain America defeated the Society
there, though it is unknown whether or not they located the entirety of
the headquarters.

The
Serpent Saucers were the Society's means of transport, initially
purchased by Seth Voelker (Sidewinder). They were derived from AIM's
hovercrafts, included external vidcams and global tracking devices, and
were armed with heat-seeking missiles. They could travel in a quiet
stealth mode. The Society initially possessed a minimum of six Saucers;
one was shot down and destroyed by the Scourge, another was stolen by
Viper and shot down by Diamondback.
The Society also possessed at least three non-customized ovoid silver
hovercrafts, also known as Serpent Saucers. One was hijacked by MODAM
and taken to Superia,
another was stolen by B.A.D. Girls, Inc.

Wilburn was a hired servant to Seth Voelker
(Sidewinder). During Voelker's period as head of the Serpent Society,
Wilburn served as major domo for the group. He was present during the
group's formative meeting, passing out membership brochures.